Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
020035goodexcellent51excellent
010024goodexcellent41excellent
000021goodexcellent41excellent
230025goodexcellent41excellent
220028goodexcellent51excellent
210030goodexcellent51excellent
200036goodexcellent61excellent
190039lightly pollutedexcellent71excellent
180044lightly pollutedexcellent71excellent
170039lightly pollutedexcellent71excellent
160077moderately pollutedexcellent71excellent
150032goodexcellent71excellent
140028goodexcellent61excellent
130028goodexcellent51excellent
120025goodexcellent41excellent
110021goodexcellent31excellent
100015goodexcellent21excellent
090012excellentexcellent21excellent
080011excellentexcellent11excellent
070010excellentexcellent11excellent
06008excellentexcellent11excellent
05009excellentexcellent21excellent
040011excellentexcellent21excellent
030013goodexcellent31excellent